Turn knob



FIG. 1 is a right side elevational view of the turn knob showing our newdesign;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a top plan view thereof.

The ornamental design for a turn knob, as shown and described.